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GCN Circulars

GCN Circulars are rapid astronomical bulletins submitted by and distributed to community members worldwide. They are used to share discoveries, observations, quantitative near-term predictions, requests for follow-up observations, or future observing plans related to high-energy, multi-messenger, and variable or transient astrophysical events. See the documentation for help with subscribing to or submitting Circulars.

Search for Circulars by submitter, subject, or body text (e.g. 'Fermi GRB').
To navigate to a specific circular, enter the associated Circular ID (e.g. 'gcn123', 'Circular 123', or '123').

13 results found.

  1. GRB 201013A: 3.6m DOT Optical Observations
  2. Konus-Wind observation of GRB 201013A
  3. GRB 201013A: Insight-HXMT/HE detection
  4. GRB 201013A: TSHAO and AbAO optical observations, afterglow confirmation
  5. GRB 201013A: AstroSat CZTI detection
  6. GRB 201013A: CALET Gamma-Ray Burst Monitor detection
  7. GRB 201013A: FRAM-ORM possible afterglow candidate
  8. GRB 201013A: Swift-BAT refined analysis
  9. GRB 201013A: Swift/UVOT Upper Limits
  10. Swift GRB 201013A: Global MASTER-Net observations report
  11. GRB 201013A: Swift-XRT refined Analysis
  12. GRB 201013A: Enhanced Swift-XRT position
  13. GRB 201013A: Swift detection of a burst


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